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/****************************************************************************
* *
* OpenNI 1.x Alpha *
* Copyright (C) 2011 PrimeSense Ltd. *
* *
* This file is part of OpenNI. *
* *
* OpenNI is free software: you can redistribute it and/or modify *
* it under the terms of the GNU Lesser General Public License as published *
* by the Free Software Foundation, either version 3 of the License, or *
* (at your option) any later version. *
* *
* OpenNI is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU Lesser General Public License for more details. *
* *
* You should have received a copy of the GNU Lesser General Public License *
* along with OpenNI. If not, see <http://www.gnu.org/licenses/>. *
* *
****************************************************************************/
#ifndef __XN_LOG_WRITER_BASE_H__
#define __XN_LOG_WRITER_BASE_H__
//---------------------------------------------------------------------------
// Includes
//---------------------------------------------------------------------------
#include <XnLogTypes.h>
#include <XnLog.h>
//---------------------------------------------------------------------------
// Types
//---------------------------------------------------------------------------
class XnLogWriterBase
{
public:
XnLogWriterBase() : m_bRegistered(FALSE)
{
m_cObject.pCookie = this;
m_cObject.WriteEntry = WriteEntryCallback;
m_cObject.WriteUnformatted = WriteUnformattedCallback;
m_cObject.OnConfigurationChanged = OnConfigurationChangedCallback;
m_cObject.OnClosing = OnClosingCallback;
}
virtual ~XnLogWriterBase()
{
Unregister();
}
XnStatus Register()
{
XnStatus nRetVal = XN_STATUS_OK;
if (!m_bRegistered)
{
OnRegister();
nRetVal = xnLogRegisterLogWriter(&m_cObject);
if (nRetVal != XN_STATUS_OK)
{
OnUnregister();
return (nRetVal);
}
m_bRegistered = TRUE;
}
return (XN_STATUS_OK);
}
void Unregister()
{
if (m_bRegistered)
{
xnLogUnregisterLogWriter(&m_cObject);
m_bRegistered = FALSE;
OnUnregister();
}
}
inline XnBool IsRegistered() { return m_bRegistered; }
virtual void WriteEntry(const XnLogEntry* pEntry) = 0;
virtual void WriteUnformatted(const XnChar* strMessage) = 0;
virtual void OnConfigurationChanged() {};
virtual void OnClosing()
{
Unregister();
};
operator const XnLogWriter*() const
{
return &m_cObject;
}
protected:
virtual void OnRegister() {}
virtual void OnUnregister() {}
private:
static void XN_CALLBACK_TYPE WriteEntryCallback(const XnLogEntry* pEntry, void* pCookie)
{
XnLogWriterBase* pThis = (XnLogWriterBase*)pCookie;
pThis->WriteEntry(pEntry);
}
static void XN_CALLBACK_TYPE WriteUnformattedCallback(const XnChar* strMessage, void* pCookie)
{
XnLogWriterBase* pThis = (XnLogWriterBase*)pCookie;
pThis->WriteUnformatted(strMessage);
}
static void XN_CALLBACK_TYPE OnConfigurationChangedCallback(void* pCookie)
{
XnLogWriterBase* pThis = (XnLogWriterBase*)pCookie;
pThis->OnConfigurationChanged();
}
static void XN_CALLBACK_TYPE OnClosingCallback(void* pCookie)
{
XnLogWriterBase* pThis = (XnLogWriterBase*)pCookie;
pThis->OnClosing();
}
XnLogWriter m_cObject;
XnBool m_bRegistered;
};
#endif // __XN_LOG_WRITER_BASE_H__
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